Britney Spears could have a bladder infection

Britney Spears continued her descent into madness over the weekend. OK! Magazine reports that the pudgy mess changed outfits three times during the night, stopped at four gas station restrooms, yelled at Sam Lufti and tried to book studio time,

…where witnesses overheard her unleashing a profanity-filled tirade at her friend Sam Lutfi over her cell phone. And when that unpleasant conversation came to and end, the Toxic singer decided to phone up a recording studio to book space. When she was given the bad news that there weren’t any rooms available, witnesses tell OK! she let loose on the poor receptionist, hollering through the phone, “I need a f**ing studio now. Don’t tell me you don’t know who I am. F*** you. I need it now, not tomorrow!”

asked a photog to drive her around town,

At one point, the mother of two invited a photographer named Phillipe to join her and her assistant in the car. The young man accepted the invite and spent the next hour or so in the backseat as Britney tooled aimlessly around L.A. in her Mini Cooper, blowing through red light after red light.

…the singer and her assistant ask Phillipe to take them to a Target store. And when he tells her that Target is closed, she responds with, “I don’t care. Take me there anyway.”

then called another one, Adnan, who she thought was cute to come drive her instead (which he did after speeding down from Santa Barbara to Malibu),

Through the window of Adnan’s car, witnesses can see Britney playing with Adnan’s hat, while they drive for over and hour back down to L.A.

stopped in the middle of the street and screamed at photogs when they wouldn’t let her take a picture of a mural,

“You guys get a million pictures of me. Just let me get one for myself. No I can take it. I don’t want you to take it. Move out of the way you f***ng a***holes. You stupid f***s. I can’t see. Move! I can’t take a picture with you standing there, you m***f***rs. You’re f***ing stupid. Shut up.”

apologized a minute later,

“I love you guys,” she tells the assembled crowd with a smile. “I’m just in a bad mood. It’s not like me to get mad at you.”

and finally took Adnan back to her place where they may or may not have had sex until 10:25 a.m.,

An hour later, Adnan leaves the hotel for a few minutes to buy cigarettes. When asked if there’s any romance going on he responds cryptically, “It’s hard to make babies when you’re just having lunch.”

Upon leaving, he joked to his fellow snappers that he and Brit are getting hitched, which some insiders think might not be unbelievable. “He’s one of the hotter-looking photographers out there,” one insider tells OK!. “He and Brit have been flirting for months now. He’s always the one to pump her gas, or hold her car door open for her, or run crowd-control to help her out. He always puts himself in the position of being the knight in shining armor.”

I’m not sure why I just gave you a detailed account of Britney’s Saturday night. You could have thought of the most retarded thing Britney could do and chances are 90% of what you imagined would be like this. More videos of Britney being crazy after the jump.